The Bentley OpenUtilities Designer and Bentley OpenUtilities Map Industry Standard Data Model models most devices as simple nodes in the Primary Network, Secondary Network, and Structure Network. Overhead Transformer Bank is representative of typical device placements where the point feature models a start node or end node in a network. Transformers are exceptional in that they model nodes across the Primary Network, Secondary Network, and Structural Network. They also represent the source features in the Secondary Network.